8 Best 10 Subwoofer Shallow Mountd

Hey there! If you’re a car audio enthusiast or simply looking to upgrade your sound system, you’re in the right place. Today, we’ll be diving into the world of shallow mount car subwoofers and comparing some of the top models available.

Shallow mount subwoofers have become increasingly popular due to their slim design that allows for easy installation in tight spaces. Whether you have a compact car or a vehicle with limited trunk space, these subwoofers offer a great solution without compromising on powerful bass.

Now, let’s take a closer look at the models we’ll be reviewing. First up, we have the Skar Audio VD-10 D4 10″ Shallow Mount Subwoofer, with a maximum power of 800W and a dual 4 ohm configuration. Next, we have the Skar Audio VS-10 D4 10″ Shallow Mount Subwoofer, boasting a higher maximum power of 1000W and also featuring a dual 4 ohm configuration. Moving on, we have the Pioneer TS-A2500LS4 1200 Watt 10″ Shallow Mount Subwoofer, a single voice coil subwoofer specifically designed to fit in compact enclosures.

Next in line, we have the MB Quart DS1-254 Discus Shallow Mount Subwoofer, known for its 400W maximum power, 2-inch voice coils, and UV rubber surround, making it a top choice for sealed enclosures. Moving on, we have the Rockville W10T4-S2 10″ Shallow Mount Subwoofer, with a peak power of 1200W and a 2-ohm impedance rating, ensuring clean and powerful bass. Another model from Skar Audio, the VD-10 D2 10″ Shallow Mount Subwoofer, features a maximum power of 800W and a dual 2 ohm configuration. Lastly, we have the NVX SMW10D4 10″ Shallow Mount Subwoofer, delivering 700W peak power and a dual 4-ohm impedance for versatile installation options.

So, get ready for an in-depth exploration of these fantastic shallow mount car subwoofers. Each model has its own unique features and specifications, guaranteeing an audio experience tailored to your preferences. Let’s dive into it and find the perfect subwoofer to elevate your car audio system to new heights.

10-inch Dual 4 Ohm Shallow Mount Car Subwoofer – Skar Audio VD-10 D4 (800W Max Power)

The Skar Audio VD-10 D4 10″ 800W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer is designed to enhance the bass performance in car audio systems. It is specifically engineered for those who are looking to upgrade their car’s audio system and experience deep, powerful bass while saving space.

We like the Skar Audio VD-10 D4 10″ Subwoofer because it offers a combination of power and versatility in a compact design. With its shallow mount design, it can be easily installed in tight spaces without sacrificing performance. It is ideal for car owners who want to add a subwoofer to their system but have limited space in their vehicle.

The main purpose of the Skar Audio VD-10 D4 10″ Subwoofer is to enhance the low-frequency audio in car audio systems. It features a peak power of 800 Watts and an RMS power of 500 Watts, allowing it to deliver deep, punchy bass.

The subwoofer also has a shallow mount design with a mounting depth of 4.41 inches, making it suitable for installation in a variety of vehicles. Its high-performance pressed paper cone is stitched to a premium foam surround, ensuring durability and optimal sound reproduction.

With a sensitivity of 85.1 dB and an Fs of 41.9 Hz, this subwoofer is designed to produce clear and accurate bass response. It is a versatile product that can be used in different types of car audio setups, whether it’s a standalone subwoofer or part of a larger speaker system.

The Skar Audio VD-10 D4 10″ Subwoofer is built with high-quality materials and boasts excellent craftsmanship. Its construction ensures long-lasting performance, even when exposed to heavy use and demanding conditions. The subwoofer delivers impressive bass response and is capable of handling high power levels without distortion.

Pros:

• Compact and shallow mount design
• Powerful bass performance
• Durable construction

Cons:

• May require additional equipment for installation
• Limited availability in some regions

The Skar Audio VD-10 D4 10″ 800W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer is a top choice for car enthusiasts who want to upgrade their audio systems with deep and powerful bass. Its compact design, durable construction, and impressive performance make it a reliable and worthwhile investment.

Skar Audio VS-10 D4 10″ Car Subwoofer, Dual 4 Ohm, Shallow Mount, 1000W Max Power

The Skar Audio VS-10 D4 10″ 1000W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer is designed for car audio enthusiasts who want to enhance the bass performance in their vehicles. It is ideal for those who are looking for a compact and shallow subwoofer that can fit in tight spaces.

The primary reason we like the Skar Audio VS-10 D4 is its impressive power output. With a peak power of 1000 Watts and an RMS power of 500 Watts, this subwoofer delivers deep, punchy bass that adds a new dimension to the overall audio experience.

The purpose of the Skar Audio VS-10 D4 is to provide car owners with a high-quality, shallow mount subwoofer that can deliver excellent bass performance without taking up much space. Its key features include a shallow mount design with a mounting depth of 3.89 inches, a competition-grade pressed paper cone, and a high roll rubber surround.

The overall quality of the Skar Audio VS-10 D4 is exceptional. The subwoofer is constructed with durable materials that can withstand the demands of continuous use. The competition-grade pressed paper cone ensures accurate and clear bass reproduction, while the high roll rubber surround provides added durability and flexibility.

There are several pros associated with the Skar Audio VS-10 D4. Firstly, its shallow mount design allows for easy installation in tight spaces. Secondly, its powerful output ensures that the bass is rich and impactful. Lastly, its durable construction ensures long-lasting performance.

However, there are a few cons to consider. The sensitivity of the subwoofer is 83.7 dB, which may be lower compared to some other models on the market. Additionally, the frequency response of 39.0 Hz may not cover the full range of bass frequencies.

The Skar Audio VS-10 D4 10″ 1000W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer is an excellent choice for car audio enthusiasts who want to enhance their audio experience with deep, powerful bass. Its compact and shallow design, impressive power output, and overall quality make it a top contender in the market.

Pioneer 10-Inch Shallow Mount Subwoofer (1200W, 4 Ohm)

The PIONEER TS-A2500LS4 1200 Watt 10″ Shallow Mount 4 Ohm SVC Subwoofer is designed to enhance the audio experience of a car audio system. It is specifically engineered to provide deep and powerful bass notes, delivering a more immersive and dynamic sound quality while driving.

We appreciate the PIONEER TS-A2500LS4 1200 Watt 10″ Shallow Mount 4 Ohm SVC Subwoofer for its exceptional performance and compact design. Despite its shallow mounting depth of only 3-3/8″, this subwoofer is capable of producing a maximum power output of 1200 watts, with a continuous RMS power of 300 watts. This ensures that the bass response remains clear, crisp, and distortion-free, even at high volume levels.

The primary purpose of the PIONEER TS-A2500LS4 1200 Watt 10″ Shallow Mount 4 Ohm SVC Subwoofer is to reproduce low-frequency sound waves accurately and efficiently. It does so with its unique design and advanced technology, allowing for a frequency response ranging from 20 Hz to 900 Hz. This ensures a wide range of bass notes that add depth and richness to the audio.

Key features of this subwoofer include its shallow mounting depth, allowing it to fit into small enclosures ranging from 0.35 to 0.7 cubic feet. This versatility makes it compatible with a wide range of vehicle types without sacrificing audio quality. Additionally, the subwoofer features a 4 ohm Single Voice Coil (SVC) configuration, enabling efficient power handling and compatibility with various amplifier setups.

The PIONEER TS-A2500LS4 1200 Watt 10″ Shallow Mount 4 Ohm SVC Subwoofer stands out for its exceptional build quality and reliable performance. Pioneer, a renowned manufacturer in the audio industry, ensures that this subwoofer meets the highest standards of quality and durability. Its robust construction and carefully engineered components contribute to its overall reliability and longevity.

Pros:

• Powerful bass performance
• Compact design for easy installation
• Wide frequency response range
• Versatile compatibility with various enclosures
• High-quality construction for durability

Cons:

• May require additional amplification for optimal performance in larger vehicles
• Limited color choices available

By investing in the PIONEER TS-A2500LS4 1200 Watt 10″ Shallow Mount 4 Ohm SVC Subwoofer, users can experience enhanced bass impact and overall audio quality in their car audio systems. Its compact design, powerful performance, and reliable construction make it a top choice for music enthusiasts seeking an immersive audio experience while on the road.

Pair of 2 Skar Audio 10″ Shallow Mount Subwoofers – 800W Max Power, Dual 4 Ohm

These Skar Audio VD-10 D4 10″ 800W Max Power Dual 4 Ohm Shallow Mount Subwoofers are designed for anyone who wants to upgrade their car’s audio system with powerful bass. Whether you enjoy listening to music while driving or want to enhance the overall sound quality in your vehicle, these subwoofers are a great choice.

We love the Skar Audio VD-10 D4 10″ Dual 4 Ohm Shallow Mount Subwoofers for their impressive power output and shallow mounting depth. With a peak power of 800 Watts and an RMS power of 500 Watts, these subwoofers deliver deep, punchy bass that will surely impress any audiophile.

The purpose of the Skar Audio VD-10 D4 10″ Dual 4 Ohm Shallow Mount Subwoofers is to provide high-quality bass in a compact and shallow design. With a mounting depth of only 4.41 inches, these subwoofers can easily fit into tight spaces in your vehicle.

Key features of these subwoofers include a 2-inch high-temperature voice coil, a pressed paper cone, and a stitched foam surround. These components work together to produce clear and powerful bass frequencies, enhancing the overall listening experience.

When it comes to the overall quality of the Skar Audio VD-10 D4 10″ Dual 4 Ohm Shallow Mount Subwoofers, they are built to last. The subwoofers are constructed with durable materials and undergo rigorous testing to ensure their reliability and performance.

Not only do these subwoofers provide excellent sound quality, but they are also easy to install. With their shallow design, they can easily be mounted in a variety of vehicles without sacrificing valuable space.

Some of the pros of the Skar Audio VD-10 D4 10″ Dual 4 Ohm Shallow Mount Subwoofers include their powerful bass output, compact size, and easy installation. These subwoofers are also backed by Skar Audio’s reputation for producing high-quality audio products.

As for the cons, some users may find the sensitivity of 85.1 dB to be slightly lower compared to other subwoofers on the market. Additionally, the frequency response of 30 – 350 Hz may not satisfy those who prefer extremely low-frequency bass.

The Skar Audio VD-10 D4 10″ Dual 4 Ohm Shallow Mount Subwoofers are an excellent choice for anyone seeking deep and powerful bass in a compact, easy-to-install package.

MB Quart DS1-254 Discus Shallow Mount Subwoofer (Black)

The MB Quart DS1-254 Discus Shallow Mount Subwoofer is specifically designed for use in vehicles with limited space, making it ideal for car audio applications.

We love the MB Quart DS1-254 Discus Shallow Mount Subwoofer because it offers exceptional performance in a compact design without sacrificing deep bass. Its shallow mounting depth of less than 3 inches allows for easy installation in sealed enclosures, making it highly versatile for any car audio setup.

The purpose of the MB Quart DS1-254 Discus Shallow Mount Subwoofer is to provide car audio enthusiasts with a high-quality subwoofer that delivers powerful bass in limited space. With a 10-inch size and 400 watts of power, this subwoofer is capable of producing deep, impactful bass.

Key features of the MB Quart DS1-254 Discus Shallow Mount Subwoofer include its 2-inch voice coils, which enhance performance and ensure high thermal stability in small enclosure volumes. The front and rear venting system allows for better cooling and helps extend the lifespan of the subwoofer. Additionally, the heavy gauge powder-coated stamped steel basket provides a solid base for the motor system and moving parts, ensuring durability and long-lasting performance. The UV rubber surround protects against sun fading and remains flexible, while the nickel-plated push and insert resist corrosion and facilitate easy installation.

The overall quality of the MB Quart DS1-254 Discus Shallow Mount Subwoofer is impressive. It is built with high-grade materials and designed to withstand the demands of car audio enthusiasts. The subwoofer delivers exceptional sound performance, and its compact size makes it perfect for vehicles with limited space.

Pros:

• Versatile shallow mounting depth
• Deep bass and impactful sound
• High thermal stability
• Durable construction
• Easy installation

Cons:

• Limited compatibility with certain car audio systems

The MB Quart DS1-254 Discus Shallow Mount Subwoofer is a top choice for car audio enthusiasts who want to add deep bass to their sound system without sacrificing space. With its outstanding performance and durable construction, this subwoofer is a solid investment for any car audio setup.

Rockville 10″ Car Subwoofer

The Rockville W10T4-S2 10″ Shallow Mount Car Subwoofer is designed for enhancing the bass in car audio systems. It is specifically created for those who want to enjoy deep, powerful bass while still maintaining a compact and space-saving design in their vehicle.

We are impressed by the Rockville W10T4-S2 10″ Shallow Mount Car Subwoofer for several reasons. First and foremost, its power handling capability is remarkable. With a peak power of 1200 Watts and a CEA rating of 400 Watts RMS, this subwoofer delivers impressive and consistent bass performance.

Additionally, the ultra-stiff paper composite cone ensures improved bass response and accurate reproduction of low frequencies. The 3D molded high gloss acrylic dust cap adds a touch of elegance to the overall aesthetics of the subwoofer.

Moreover, one of the standout features of this product is its ultra-slim design, which allows for convenient installation in tight spaces. The expanded and rolled steel basket provides durability and stability, ensuring the subwoofer’s longevity in any car audio setup.

The Rockville W10T4-S2 10″ Shallow Mount Car Subwoofer is purpose-built to provide car enthusiasts with powerful bass reproduction without compromising on space. Its key features include a 10-inch subwoofer that can handle up to 1200 Watts peak power and 400 Watts RMS. The ultra-stiff paper composite cone and 3D molded high gloss acrylic dust cap contribute to its exceptional audio performance.

When it comes to overall quality, the Rockville W10T4-S2 10″ Shallow Mount Car Subwoofer stands out. It is manufactured using high-quality materials that ensure durability and excellent sound reproduction. The attention to detail in its design and construction is evident, making it a reliable and long-lasting addition to any car audio system.

Pros:

• Impressive power handling capabilities
• Ultra-slim design for easy installation in compact spaces
• Durable expanded and rolled steel basket
• Exceptional bass response with the ultra-stiff paper composite cone

Cons:

• May not fit all vehicle models due to its shallow mount design
• May require professional installation for optimal performance

(2) Skar Audio 10″ Shallow Mount Subwoofers, Pair of 2, 800W Max Power, Dual 2 Ohm, Model: (2) VD-10 D2

The Skar Audio VD-10 D2 10″ 800W Max Power Dual 2 Ohm Shallow Mount Subwoofers are primarily designed and built for car audio enthusiasts who want to enhance their vehicle’s sound system. These subwoofers are specifically created to deliver deep and impactful low-frequency bass, providing a powerful and immersive audio experience.

We are impressed with the Skar Audio VD-10 D2 10″ Subwoofers for several reasons. Firstly, they offer a remarkable peak power of 800 watts each, ensuring that the bass produced is robust and energetic. Additionally, with an RMS power of 500 watts each, these subwoofers consistently deliver clean and distortion-free bass notes.

Another aspect we appreciate about these subwoofers is their shallow mount design, which allows them to fit in tight spaces with a mounting depth of only 4.41 inches. This makes them ideal for installations in compact cars or vehicles with limited space.

The Skar Audio VD-10 D2 Subwoofers are engineered to enhance the low-frequency output in a car audio system. With a frequency response of 45 Hz to 500 Hz, these subwoofers deliver a deep and precise bass response, filling the vehicle with rich and powerful sound.

One of the standout features of these subwoofers is their 2″ high temperature voice coil. This design ensures that the subwoofers can handle elevated power levels without overheating, resulting in extended playing times and optimal performance.

Additionally, the pressed paper cone and stitched foam surround contribute to the subwoofers’ durability and enhance the overall sound quality. These construction materials are carefully selected to produce accurate and impactful bass notes while withstanding the rigors of daily use.

The Skar Audio VD-10 D2 Subwoofers exhibit excellent build quality, delivering impressive performance and durability. The components and materials used in their construction are of high quality, ensuring longevity and consistent performance.

• Powerful peak power of 800 watts each

• RMS power of 500 watts each for clean and distortion-free bass

• Shallow mount design enables installation in tight spaces

• 2″ high temperature voice coil for extended playing times

• Durable construction with pressed paper cone and stitched foam surround

• May require a separate amplifier for optimal performance

• May not fit in all vehicle models due to their size

The Skar Audio VD-10 D2 10″ Subwoofers are an excellent choice for car audio enthusiasts seeking deep and impactful bass in their sound system. With their impressive power and durable construction, these subwoofers are a fantastic addition to any vehicle audio setup.

NVX 10″ Dual 4-Ohm Subwoofer (S-Series)

The NVX SMW10D4 700W Peak (350W RMS) S-Series Shallow-Mount 10″ Dual 4-Ohm Subwoofer is designed for car audio enthusiasts looking to add deep bass to their vehicle’s sound system.

We love the NVX SMW10D4 Subwoofer because it delivers powerful bass despite its compact size. With a peak power handling of 700 watts and RMS power handling of 350 watts, this subwoofer ensures an immersive audio experience while taking up minimal space in the vehicle.

The NVX SMW10D4 Subwoofer is specifically designed for shallow-mount applications, making it perfect for compact cars or tight spaces where a traditional subwoofer may not fit. Its 10″ carbon fiber reinforced polypropylene cone delivers accurate and punchy bass, while the butyl rubber surround enhances the subwoofer’s durability and longevity.

This subwoofer also includes a depth extension clearance plate, allowing for even greater flexibility in installation. This plate enables the subwoofer to fit into even shallower spaces, expanding the range of vehicles it can be installed in.

The NVX SMW10D4 Subwoofer is built with exceptional quality, ensuring reliable and long-lasting performance. The carbon fiber reinforced polypropylene cone provides excellent rigidity, allowing for precise sound reproduction. Additionally, the butyl rubber surround not only enhances the subwoofer’s durability but also helps to reduce unwanted resonances and vibrations.

• Compact shallow-mount design

• Powerful bass output despite the small size

• Durable construction with carbon fiber reinforced cone and butyl rubber surround

• Includes depth extension clearance plate for versatile installation

• May require professional installation for optimal performance

• Dual 4-ohm impedance may require additional wiring configurations for compatibility with different amplifiers

With its compact design, powerful bass output, and durable construction, the NVX SMW10D4 Subwoofer is an excellent choice for car audio enthusiasts looking to enhance their audio experience without sacrificing valuable space in their vehicle. Whether you enjoy punchy beats or deep bass, this subwoofer delivers impressive performance.

Comparison of Specifications

Skar Audio VD-10 D4 10″ 800W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer

• Peak Power: 800 Watts
• RMS Power: 500 Watts
• Mounting Depth: 4.41″
• Cone Material: Pressed Paper
• Surround Material: Premium Foam
• Sensitivity: 85.1 dB
• Frequency Response: 41.9 Hz

Skar Audio VS-10 D4 10″ 1000W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer

• Peak Power: 1000 Watts
• RMS Power: 500 Watts
• Mounting Depth: 3.89″
• Cone Material: Competition Grade Pressed Paper
• Surround Material: High Roll Rubber
• Sensitivity: 83.7 dB
• Frequency Response: 39.0 Hz

PIONEER TS-A2500LS4 1200 Watt 10″ Shallow Mount 4 Ohm SVC Subwoofer

• Max Power: 1200 Watts
• RMS Power: 300 Watts
• Mounting Depth: 3-3/8″
• Frequency Response: 20 Hz to 900 Hz

(2) Skar Audio VD-10 D4 10″ 800W Max Power Dual 4 Ohm Shallow Mount Subwoofers, Pair of 2

• Peak Power: 800 Watts (each)
• RMS Power: 500 Watts (each)
• Mounting Depth: 4.41″
• Cone Material: Pressed Paper
• Surround Material: Stitched Foam
• Sensitivity: 85.1 dB
• Frequency Response: 30 – 350 Hz

MB Quart DS1-254 Discus Shallow Mount Subwoofer

• Watts: 400 Watts
• Cone Material: UV Rubber
• Voice Coil: 2 Inch
• Surround Material: Rubber
• Best Placement: Sealed Enclosures

Rockville W10T4-S2 10″ Shallow Mount 1200w Peak Car Subwoofer 2-Ohm Sub

• Peak Power: 1200 Watts
• Program Power: 800 Watts
• RMS Power: 400 Watts
• Cone Material: Ultra Stiff Paper Composite
• Dust Cap Material: High Gloss Acrylic
• Basket Material: Expanded and Rolled Steel

(2) Skar Audio VD-10 D2 10″ 800W Max Power Dual 2 Ohm Shallow Mount Subwoofers, Pair of 2

• Peak Power: 800 Watts (each)
• RMS Power: 500 Watts (each)
• Mounting Depth: 4.41″
• Cone Material: Pressed Paper
• Surround Material: Stitched Foam
• Sensitivity: 85.2 dB
• Frequency Response: 45 Hz – 500 Hz

NVX SMW10D4 700W Peak (350W RMS) S-Series Shallow-Mount 10″ Dual 4-Ohm Subwoofer

• Peak Power: 700 Watts
• RMS Power: 350 Watts
• Cone Material: Carbon Fiber Reinforced Polypropylene
• Surround Material: Butyl Rubber
• Depth Extension Clearance Plate: Included

Visualization

Product	Peak Power	RMS Power	Mounting Depth	Cone Material	Surround Material	Sensitivity	Frequency Response
Skar Audio VD-10 D4 10″ 800W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer	800 Watts	500 Watts	4.41″	Pressed Paper	Premium Foam	85.1 dB	41.9 Hz
Skar Audio VS-10 D4 10″ 1000W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer	1000 Watts	500 Watts	3.89″	Competition Grade Pressed Paper	High Roll Rubber	83.7 dB	39.0 Hz
PIONEER TS-A2500LS4 1200 Watt 10″ Shallow Mount 4 Ohm SVC Subwoofer	1200 Watts	300 Watts	3-3/8″	N/A	N/A	N/A	20 Hz to 900 Hz
(2) Skar Audio VD-10 D4 10″ 800W Max Power Dual 4 Ohm Shallow Mount Subwoofers, Pair of 2	800 Watts (each)	500 Watts (each)	4.41″	Pressed Paper	Stitched Foam	85.1 dB	30 – 350 Hz
MB Quart DS1-254 Discus Shallow Mount Subwoofer	400 Watts	N/A	N/A	UV Rubber	N/A	N/A	N/A
Rockville W10T4-S2 10″ Shallow Mount 1200w Peak Car Subwoofer 2-Ohm Sub	1200 Watts	400 Watts	N/A	Ultra Stiff Paper Composite	N/A	N/A	N/A
(2) Skar Audio VD-10 D2 10″ 800W Max Power Dual 2 Ohm Shallow Mount Subwoofers, Pair of 2	800 Watts (each)	500 Watts (each)	4.41″	Pressed Paper	Stitched Foam	85.2 dB	45 Hz – 500 Hz
NVX SMW10D4 700W Peak (350W RMS) S-Series Shallow-Mount 10″ Dual 4-Ohm Subwoofer	700 Watts	350 Watts	N/A	Carbon Fiber Reinforced Polypropylene	Butyl Rubber	N/A	N/A

Conclusion

After reviewing eight different shallow mount car subwoofers, it is clear that each product has its own strengths and weaknesses. Overall, the Skar Audio VD-10 D4 10″ 800W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer stands out as a reliable and powerful option. It offers a decent maximum power output and a dual 4 ohm impedance, making it compatible with a variety of car audio systems.

Drawbacks

However, there are some drawbacks to consider with this subwoofer. Some users have reported that it may require a lot of power to reach its full potential, which could strain the car’s electrical system. Additionally, the bass response may not be as deep or impactful as some higher-end subwoofers on the market.

Recommendation

Despite these drawbacks, the Skar Audio VD-10 D4 10″ 800W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer is recommended for car audio enthusiasts who are looking for a budget-friendly option that still delivers decent performance. It is particularly suitable for individuals who prioritize ease of installation, as its shallow mount design allows for flexible placement options. Additionally, those who enjoy a well-balanced sound with clear mid-range and tight bass will appreciate this subwoofer’s performance.

Overall, the Skar Audio VD-10 D4 10″ 800W Max Power Dual 4 Ohm Shallow Mount Car Subwoofer offers a good balance between price and performance, making it a solid choice for those in need of a shallow mount subwoofer for their car audio system.